# setup.py - distutils packaging
#
# Copyright (C) 2003-2019 Federico Di Gregorio  <fog@debian.org>
#
# psycopg2 is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
# License for more details.

"""Python-PostgreSQL Database Adapter

psycopg2 is a PostgreSQL database adapter for the Python programming
language.  psycopg2 was written with the aim of being very small and fast,
and stable as a rock.

psycopg2 is different from the other database adapter because it was
designed for heavily multi-threaded applications that create and destroy
lots of cursors and make a conspicuous number of concurrent INSERTs or
UPDATEs. psycopg2 also provide full asynchronous operations and support
for coroutine libraries.
"""

# Note: The setup.py must be compatible with both Python 2 and 3


import os
import sys
import re
import subprocess
from setuptools import setup, Extension
from distutils.command.build_ext import build_ext
from distutils.sysconfig import get_python_inc
from distutils.ccompiler import get_default_compiler
from distutils.errors import CompileError
from distutils.util import get_platform

try:
    import configparser
except ImportError:
    import ConfigParser as configparser

# Take a look at https://www.python.org/dev/peps/pep-0440/
# for a consistent versioning pattern.

PSYCOPG_VERSION = '@VERSION@'


# note: if you are changing the list of supported Python version please fix
# the docs in install.rst and the /features/ page on the website.
classifiers = """\
Development Status :: 5 - Production/Stable
Intended Audience :: Developers
License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)
License :: OSI Approved :: Zope Public License
Programming Language :: Python
Programming Language :: Python :: 2
Programming Language :: Python :: 2.7
Programming Language :: Python :: 3
Programming Language :: Python :: 3.4
Programming Language :: Python :: 3.5
Programming Language :: Python :: 3.6
Programming Language :: Python :: 3.7
Programming Language :: Python :: Implementation :: CPython
Programming Language :: C
Programming Language :: SQL
Topic :: Database
Topic :: Database :: Front-Ends
Topic :: Software Development
Topic :: Software Development :: Libraries :: Python Modules
Operating System :: Microsoft :: Windows
Operating System :: Unix
"""

version_flags = ['dt', 'dec']

PLATFORM_IS_WINDOWS = sys.platform.lower().startswith('win')

class psycopg_build_ext(build_ext):
    """Conditionally complement the setup.cfg options file.

    This class configures the include_dirs, library_dirs, libraries
    options as required by the system. Most of the configuration happens
    in finalize_options() method.

    If you want to set up the build step for a peculiar platform, add a
    method finalize_PLAT(), where PLAT matches your sys.platform.
    """
    user_options = build_ext.user_options[:]
    user_options.extend([
        ('use-pydatetime', None,
         "Use Python datatime objects for date and time representation."),
        ('pg-config=', None,
         "The name of the pg_config binary and/or full path to find it"),
        ('have-ssl', None,
         "Compile with OpenSSL built PostgreSQL libraries (Windows only)."),
        ('static-libpq', None,
         "Statically link the PostgreSQL client library"),
    ])

    boolean_options = build_ext.boolean_options[:]
    boolean_options.extend(('use-pydatetime', 'have-ssl', 'static-libpq'))

    def __init__(self, *args, **kwargs):
        build_ext.__init__(self, *args, **kwargs)

    def initialize_options(self):
        build_ext.initialize_options(self)
        self.pgdir = None
        self.mx_include_dir = None
        self.have_ssl = have_ssl
        self.static_libpq = static_libpq
        self.pg_config = None

    def compiler_is_msvc(self):
        return self.get_compiler_name().lower().startswith('msvc')

    def compiler_is_mingw(self):
        return self.get_compiler_name().lower().startswith('mingw')

    def get_compiler_name(self):
        """Return the name of the C compiler used to compile extensions.

        If a compiler was not explicitly set (on the command line, for
        example), fall back on the default compiler.
        """
        if self.compiler:
            # distutils doesn't keep the type of self.compiler uniform; we
            # compensate:
            if isinstance(self.compiler, str):
                name = self.compiler
            else:
                name = self.compiler.compiler_type
        else:
            name = get_default_compiler()
        return name

    def get_export_symbols(self, extension):
        # Fix MSVC seeing two of the same export symbols.
        if self.compiler_is_msvc():
            return []
        else:
            return build_ext.get_export_symbols(self, extension)

    built_files = 0

    def build_extension(self, extension):
        # Count files compiled to print the binary blurb only if the first fails
        compile_orig = getattr(self.compiler, '_compile', None)
        if compile_orig is not None:
            def _compile(*args, **kwargs):
                rv = compile_orig(*args, **kwargs)
                psycopg_build_ext.built_files += 1
                return rv

            self.compiler._compile = _compile

        try:
            build_ext.build_extension(self, extension)
            psycopg_build_ext.built_files += 1
        except CompileError:
            if self.built_files == 0:
                sys.stderr.write("""
It appears you are missing some prerequisite to build the package from source.

You may install a binary package by installing 'psycopg2-binary' from PyPI.
If you want to install psycopg2 from source, please install the packages
required for the build and try again.

For further information please check the 'doc/src/install.rst' file (also at
<http://initd.org/psycopg/docs/install.html>).

""")
            raise

        sysVer = sys.version_info[:2]

        # For Python versions that use MSVC compiler 2008, re-insert the
        # manifest into the resulting .pyd file.
        if self.compiler_is_msvc() and sysVer == (2, 7):
            platform = get_platform()
            # Default to the x86 manifest
            manifest = '_psycopg.vc9.x86.manifest'
            if platform == 'win-amd64':
                manifest = '_psycopg.vc9.amd64.manifest'
            try:
                ext_path = self.get_ext_fullpath(extension.name)
            except AttributeError:
                ext_path = os.path.join(self.build_lib,
                        'psycopg2', '_psycopg.pyd')
            # Make sure spawn() will work if compile() was never
            # called. https://github.com/psycopg/psycopg2/issues/380
            if not self.compiler.initialized:
                self.compiler.initialize()
            self.compiler.spawn(
                ['mt.exe', '-nologo', '-manifest',
                 os.path.join('psycopg', manifest),
                 '-outputresource:%s;2' % ext_path])

    def finalize_win32(self):
        """Finalize build system configuration on win32 platform."""

        # Add compiler-specific arguments:
        extra_compiler_args = []

        if self.compiler_is_mingw():
            # Default MinGW compilation of Python extensions on Windows uses
            # only -O:
            extra_compiler_args.append('-O3')

            # GCC-compiled Python on non-Windows platforms is built with strict
            # aliasing disabled, but that must be done explicitly on Windows to
            # avoid large numbers of warnings for perfectly idiomatic Python C
            # API code.
            extra_compiler_args.append('-fno-strict-aliasing')

        for extension in ext:  # ext is a global list of Extension objects
            extension.extra_compile_args.extend(extra_compiler_args)
        # End of add-compiler-specific arguments section.

        self.libraries.append("ws2_32")
        self.libraries.append("advapi32")
        if self.compiler_is_msvc():
            # MSVC requires an explicit "libpq"
            # if "pq" in self.libraries:
            #     self.libraries.remove("pq")
            self.libraries.append("secur32")
            # self.libraries.append("libpq")
            self.libraries.append("shfolder")
            # for path in self.library_dirs:
            #     if os.path.isfile(os.path.join(path, "ms", "libpq.lib")):
            #         self.library_dirs.append(os.path.join(path, "ms"))
            #         break
            if self.have_ssl:
                self.libraries.append("openssl")
                self.libraries.append("crypt32")
                self.libraries.append("user32")
                self.libraries.append("gdi32")

    def finalize_linux(self):
        """Finalize build system configuration on GNU/Linux platform."""
        # tell piro that GCC is fine and dandy, but not so MS compilers
        for extension in self.extensions:
            extension.extra_compile_args.append(
                '-Wdeclaration-after-statement')

    finalize_linux2 = finalize_linux
    finalize_linux3 = finalize_linux

    def finalize_options(self):
        """Complete the build system configuration."""
        # An empty option in the setup.cfg causes self.libraries to include
        # an empty string in the list of libraries
        if self.libraries is not None and not self.libraries.strip():
            self.libraries = None

        build_ext.finalize_options(self)

        self.include_dirs.append(".")
        self.include_dirs.append('@POSTGRESQL_INCLUDE_DIRS@')
        if sys.platform != 'darwin':
            self.libraries.append("@POSTGRESQL_LIBRARIES@")

        try:
            self.library_dirs.append('@POSTGRESQL_LIBRARY_DIR@')
            pgversion = '@POSTGRESQL_VERSION@'

            verre = re.compile(
                r"(\d+)(?:\.(\d+))?(?:(?:\.(\d+))|(devel|(?:alpha|beta|rc)\d+))?")
            m = verre.match(pgversion)
            if m:
                pgmajor, pgminor, pgpatch = m.group(1, 2, 3)
                # Postgres >= 10 doesn't have pgminor anymore.
                pgmajor = int(pgmajor)
                if pgmajor >= 10:
                    pgminor, pgpatch = None, pgminor
                if pgminor is None or not pgminor.isdigit():
                    pgminor = 0
                if pgpatch is None or not pgpatch.isdigit():
                    pgpatch = 0
                pgminor = int(pgminor)
                pgpatch = int(pgpatch)
            else:
                sys.stderr.write(
                    "Error: could not determine PostgreSQL version from '%s'"
                    % pgversion)
                sys.exit(1)

            define_macros.append(("PG_VERSION_NUM", "%d%02d%02d" %
                                  (pgmajor, pgminor, pgpatch)))

            # enable lo64 if libpq >= 9.3 and Python 64 bits
            if (pgmajor, pgminor) >= (9, 3) and is_py_64():
                define_macros.append(("HAVE_LO64", "1"))

                # Inject the flag in the version string already packed up
                # because we didn't know the version before.
                # With distutils everything is complicated.
                for i, t in enumerate(define_macros):
                    if t[0] == 'PSYCOPG_VERSION':
                        n = t[1].find(')')
                        if n > 0:
                            define_macros[i] = (
                                t[0], t[1][:n] + ' lo64' + t[1][n:])

        except Warning:
            w = sys.exc_info()[1]  # work around py 2/3 different syntax
            sys.stderr.write("Error: %s\n" % w)
            sys.exit(1)

        if hasattr(self, "finalize_" + sys.platform):
            getattr(self, "finalize_" + sys.platform)()


def is_py_64():
    # sys.maxint not available since Py 3.1;
    # sys.maxsize not available before Py 2.6;
    # this is portable at least between Py 2.4 and 3.4.
    import struct
    return struct.calcsize("P") > 4


# let's start with macro definitions (the ones not already in setup.cfg)
define_macros = []
include_dirs = []

# gather information to build the extension module
ext = []
data_files = []

# sources

sources = [
    'psycopgmodule.c',
    'green.c', 'pqpath.c', 'utils.c', 'bytes_format.c',
    'libpq_support.c', 'win32_support.c', 'solaris_support.c',

    'connection_int.c', 'connection_type.c',
    'cursor_int.c', 'cursor_type.c', 'column_type.c',
    'replication_connection_type.c',
    'replication_cursor_type.c',
    'replication_message_type.c',
    'diagnostics_type.c', 'error_type.c', 'conninfo_type.c',
    'lobject_int.c', 'lobject_type.c',
    'notify_type.c', 'xid_type.c',

    'adapter_asis.c', 'adapter_binary.c', 'adapter_datetime.c',
    'adapter_list.c', 'adapter_pboolean.c', 'adapter_pdecimal.c',
    'adapter_pint.c', 'adapter_pfloat.c', 'adapter_qstring.c',
    'microprotocols.c', 'microprotocols_proto.c',
    'typecast.c',
]

depends = [
    # headers
    'config.h', 'pgtypes.h', 'psycopg.h', 'python.h', 'connection.h',
    'cursor.h', 'diagnostics.h', 'error.h', 'green.h', 'lobject.h',
    'replication_connection.h',
    'replication_cursor.h',
    'replication_message.h',
    'notify.h', 'pqpath.h', 'xid.h', 'column.h', 'conninfo.h',
    'libpq_support.h', 'win32_support.h', 'utils.h',

    'adapter_asis.h', 'adapter_binary.h', 'adapter_datetime.h',
    'adapter_list.h', 'adapter_pboolean.h', 'adapter_pdecimal.h',
    'adapter_pint.h', 'adapter_pfloat.h', 'adapter_qstring.h',
    'microprotocols.h', 'microprotocols_proto.h',
    'typecast.h', 'typecast_binary.h', 'sqlstate_errors.h',

    # included sources
    'typecast_array.c', 'typecast_basic.c', 'typecast_binary.c',
    'typecast_builtins.c', 'typecast_datetime.c',
]

parser = configparser.ConfigParser()
parser.read('setup.cfg')

# check for mx package
have_mxdatetime = False
mxincludedir = ''
if parser.has_option('build_ext', 'mx_include_dir'):
    mxincludedir = parser.get('build_ext', 'mx_include_dir')
if not mxincludedir:
    mxincludedir = os.path.join(get_python_inc(plat_specific=1), "mx")
if mxincludedir.strip() and os.path.exists(mxincludedir):
    # Build the support for mx: we will check at runtime if it can be imported
    include_dirs.append(mxincludedir)
    define_macros.append(('HAVE_MXDATETIME', '1'))
    sources.append('adapter_mxdatetime.c')
    depends.extend(['adapter_mxdatetime.h', 'typecast_mxdatetime.c'])
    have_mxdatetime = True
    version_flags.append('mx')

# generate a nice version string to avoid confusion when users report bugs
version_flags.append('pq3')     # no more a choice
version_flags.append('ext')     # no more a choice

if version_flags:
    PSYCOPG_VERSION_EX = PSYCOPG_VERSION + " (%s)" % ' '.join(version_flags)
else:
    PSYCOPG_VERSION_EX = PSYCOPG_VERSION

define_macros.append(('PSYCOPG_VERSION', PSYCOPG_VERSION_EX))

if parser.has_option('build_ext', 'have_ssl'):
    have_ssl = parser.getboolean('build_ext', 'have_ssl')
else:
    have_ssl = False

if parser.has_option('build_ext', 'static_libpq'):
    static_libpq = parser.getboolean('build_ext', 'static_libpq')
else:
    static_libpq = False

# And now... explicitly add the defines from the .cfg files.
# Looks like setuptools or some other cog doesn't add them to the command line
# when called e.g. with "pip -e git+url'. This results in declarations
# duplicate on the commandline, which I hope is not a problem.
for define in parser.get('build_ext', 'define').split(','):
    if define:
        define_macros.append((define, '1'))

# build the extension

sources = [os.path.join('psycopg', x) for x in sources]
depends = [os.path.join('psycopg', x) for x in depends]

extra_link_args = []

if sys.platform == 'darwin':
    if [int(x) for x in os.uname()[2].split('.')] >= [11, 0, 0]:
        # since MacOS X 10.9, clang no longer accepts -mno-fused-madd
        #extra_compile_args.append('-Qunused-arguments')
        os.environ['ARCHFLAGS'] = '-Wno-error=unused-command-line-argument-hard-error-in-future'
    extra_link_args.extend(['-mmacosx-version-min=@CMAKE_OSX_DEPLOYMENT_TARGET@'])
    os.environ['LDFLAGS'] = '-framework @PQ_FRAMEWORK@'
    extra_link_args.append('-Wl,-F@PQ_FRAMEWORK_DIRS@')

    if have_ssl:
        os.environ['LDFLAGS'] += ' -framework @OPENSSL_FRAMEWORK@'
        extra_link_args.append('-Wl,-F@OPENSSL_FRAMEWORK_DIRS@')
    os.environ['LDFLAGS'] += ' -rpath \"@loader_path/../../../../Frameworks/\"'
elif sys.platform == 'win32':
    if have_ssl:
        extra_link_args.append('/LIBPATH:@OPENSSL_LIB_DIRS@')

ext.append(Extension("psycopg2._psycopg", sources,
                     define_macros=define_macros,
                     include_dirs=include_dirs,
                     extra_link_args=extra_link_args,
                     depends=depends,
                     undef_macros=[]))

# Compute the direct download url.
download_url = (
    "http://initd.org/psycopg/tarballs/PSYCOPG-%s/psycopg2-%s.tar.gz"
    % (re.sub(r'^(\d+)\.(\d+).*', r'\1-\2', PSYCOPG_VERSION),
        PSYCOPG_VERSION))

try:
    f = open("README.rst")
    readme = f.read()
    f.close()
except Exception:
    print("failed to read readme: ignoring...")
    readme = __doc__

setup(name="psycopg2",
      version=PSYCOPG_VERSION,
      maintainer="Federico Di Gregorio",
      maintainer_email="fog@initd.org",
      author="Federico Di Gregorio",
      author_email="fog@initd.org",
      url="http://initd.org/psycopg/",
      download_url=download_url,
      license="LGPL with exceptions or ZPL",
      platforms=["any"],
      python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
      description=readme.split("\n")[0],
      long_description="\n".join(readme.split("\n")[2:]).lstrip(),
      classifiers=[x for x in classifiers.split("\n") if x],
      data_files=data_files,
      package_dir={'psycopg2': 'lib'},
      packages=['psycopg2'],
      cmdclass={'build_ext': psycopg_build_ext},
      ext_modules=ext,
      project_urls={
          'Source': 'https://github.com/psycopg/psycopg2',
          'Documentation': 'http://initd.org/psycopg/docs/',
      })
